/*
 * Copyright (c) 2009, Takashi Ito
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the authors nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "tssp_internal.h"
#include "tssp_dvb_dr_6F.h"


int tssp_dr_application_signalling_parse(
        struct tssp_dr_application_signalling *dest,
        const struct tssp_descriptor *src)
{
    int i;
    uint8_t *data;

    TSSP_ASSERT(dest);
    TSSP_ASSERT(src);

    if (src->tag != 0x6F)
        return TSSP_STATUS_FAILED;

    if (src->length < 3 || (src->length % 3) != 0)
        return TSSP_STATUS_FAILED;

    data = src->data;
    dest->count = src->length / 3;
    for (i = 0; i < dest->count; i++) {
        dest->data[i].application_type = (0x7FFF & TSSP_TO_UINT16(data));
        dest->data[i].AIT_version_number = (0x1F & data[2]);
        data += 3;
    }

    return TSSP_STATUS_OK;
}

struct tssp_dr_application_signalling *
tssp_dr_application_signalling_create(const struct tssp_descriptor *src)
{
    struct tssp_dr_application_signalling *dest;

    dest = malloc(sizeof(*dest));
    if (dest == NULL)
        return NULL;

    if (tssp_dr_application_signalling_parse(dest, src) == TSSP_STATUS_OK)
        return dest;

    free(dest);
    return NULL;
}

